Toy oil derricks and pumpers



Nuv. 8, 1955 J. 1.. BONANNO 2,72 3

TOY on. DERRICKS AND PUMPERS Filed Oct. 16, 1951 s Sheets-Sheet 1ATTORNEY Nov. 8, 1955 2,722,773

J. L. BONANNO TOY OIL DERRICKS AND PUMPERS Filed Oct. 16, 1951 3Sheets-Sheet 2 ATTORNEY 1955 J. L. BONANNO 2,722,773

TOY OIL DERRICKS AND PUMPERS Filed Oct. 16, 1951 5 Sheets-Sheet I5INVENTOR l/OScP/l LBa/w/v/va ATTORNEY Unite States Patent Tor on.oERnrcKs AND PUMPERS Joseph L. Bonanno, Madison, N 1., assignor to TheLionel Corporation, New York; N. Y., a corporation of New YorkApplication October 16-, 1951-, Serial No. 251,-567

3' Claims. (Cl. 4'6-39)' The present invention relates to toy o'ilderricks and pumpers and is more particularly directed to such toyssuitable for operation and toy railroad accessories to simulate thepumping of oil at an oil well.

The typical oil well pumper is used with a talltower structure formingthe oil derrick and employs a prime mover such as a diesel enginegenerating. plant and an electric motor with reduction gears arranged tooperate an oil pump.

According to the present invention the device is operated from asuitable low voltage source su'ch as is available from a toy railroadtransformer and an intermittently energized solenoid works the toy pumpthrough a walking beam or rocker arm. This intermittent energization iscontrolled by a thermal circuit breaker. While the toy pump does notpump liquid, such actionis here simulated by creating bubbles whichascend in a closed tube filled with liquid.

According to the preferred embodiment of the oil derrick and pumper, thethermal circuit controller, the solenoid with armature and the rockerarm are comprised in a preassembled unit which is secured to the base orplatform from which the oil derrick rises. To further carry out thesimulation of the full sized device, the thermal controller is coveredby a plastic molding shaped to simulate the diesel power plant and thesolenoid is covered by another plastic molding shaped to simulate themotor driven unit which operates an oil derrick pump.

Other and further objects will appear as the description proceeds.

The accompanying drawings show, for purposes of illustrating the presentinvention, one embodiment in which the invention may take form, it beingunderstood that the drawings are illustrative of the invention ratherthan limiting the same.

In the drawings:

Figure 1 is a perspective view of the toy oil derrick and pumper;

Figure 2 is a perspective view of the preassembled rocker arm actuatingunit;

Figures 3 and 4 are vertical sectional and inverted plan views, Figure 3being taken on the line 3-3 of Figures 2 and 4;

Figures 5, 6 and 7 are vertical sectional views at a larger scale andtaken on the lines 5-5, 66 and 7-7 respectively of Figure 4, to show thethermal circuit controller, the solenoid-rocker arm operator and thebubble tube; and

Figure 8 is a wiring diagram.

The entire toy is carried on a shallow rectangular, inverted sheet metalpan 10, the side walls 11 of which elevate the platform above thesupporting surface so as to accommodate and conceal certain of themechanism to be described. Near the left end of the base is the squaretower 13 which carries hoisting tackle 14. These simulate the usual oilderrick. The tower is made of sheet metal and the lower corners aresecured to the base by twisted prongs 15.

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To the right of? the tower, as shown in the drawings, the base carriesapreassembled operating unit. All operatingv parts of this operatingunit are carried on a relatively heavy sheet metal mounting plate 16 ofgeneral T shape as shown from Figure 2. The inner or left end of plate16' carries a square, relatively low tower 17 provided with a horizontalshaft 18 onwhich is mounted a walking beam or rocker arm 19 made of aplastic molding. The tower 17 is secured in place by bent lugs 20.

To the right of the tower 20, a vertical solenoid coil 21 is secured tothe plate 16 by a magnetizable frame 22 having twisted lugs 22 passingthrough the plate. This coil receives a plunger type armature 23 whichprojects down through a hole 24 in the top plate 16. The lower end 25 ofthe armature issecured to the lower end of a link 26, which extends upthrough holes 27, 27 in the plate 16 and issecured at its upper end 28to the rocker arm. The weight distribution of the rocker arm andarmature is such that the right-handend of the rocker arm is normallylowered in the full line position of the drawings.

The right hand end of the plate 16 has a relatively large opening 29which is covered by an insulating plate 30, secured in place by twistedears 31 (Fig. 5). The insulating plate 30 supports one end of a bimetalWarp element 32 whose free end is opposite an adjustable fixed contact33. The warp element 32 is provided with a resistance heater coil 34'grounded to it andconnected at its other end to a binding post 35carried by the insulating plate;

The mounting for the adjustable contact 33 is connected by a wire 36 tothe solenoid coil 21 having its other end grounded to the plate 16. Thereturn binding post is shown at 37. When current is supplied theseparts, the solenoid coil is energized and the rocker arm lifted. Soonthe heater coil has caused the warp element to open the circuit. Thisdeenergizes the solenoid and the warp element cools to reestablish thecircuit. The frequency of the operation is controlled by the adjustmentof the fixed contact 33.

The mounting plate 16 is secured to the platform 12 by twisted ears 38.To accommodate the tower lugs 20, the solenoid frame lugs 22', thearmature 23 and link 26, the platform has a relatively large hole 39under the left end of the plate 16. To the right, the platform has arelatively large hole 40 which accommodates the insulating plate 30 andbinding posts 35 and 37.

The warp element and adjacent wiring are covered and concealed by aplastic molding 41 shaped to simulate a diesel electric power plant andsecured in place on the plate 16 by screws 42. The solenoid 21, but notthe link 26, is covered by another plastic molding 43 to simulate theelectric motor and housing about the speed reducing mechanism. The cover43 is held in place by friction clips 44 carried on depending studs 45.These covers protect the parts and enhance the play value of the toy.

Under the derrick tower the device is provided with devices to simulatethe oil handling devices used with derricks in the oil industries. Tocarry out this illusion and relate it to the rocker arm, the base 10, asshown at the left of Figures 1, 3 and 4 and in Figure 7, has a plasticbody 50 simulating the upper part of the pump mechanism and this isassociated with a plunger 51 connected by a chain 52 with the rocker arm19 so as to be moved up and down thereby. The plastic body is secured inplace by friction clips 53, one carried on a. stud 54, the other on arod 55 adapted to be swung about and appear like a discharge pipe. Thebody also carries a transparent tube 56 to which is secured a plasticbody 57 simulating the overhead piping.

The tube 56 is partly filled with methylene chloride and the usualgranules 56' so that bubbles may be caused 3 to rise through the lightedliquid in the tube by a lamp bulb 58 which lights the tube and heats thebottom of the tube. The lamp is carried in a socket 59 which can beswung down as indicated in Figure 7, and is parallel with the solenoidcircuit so that the bubbling continues while the pumping operation ofthe toy is going on.

Since it is obvious that the invention may be embodied in other formsand constructions within the scope of the claims, I wish it to beunderstood that the particular form shown is but one of these forms, andvarious modifications and changes being possible, I do not otherwiselimit myself in any way with respect thereto.

What is claimed is:

1. A toy oil derrick comprising a base, an oil pump simulating bodycarried by the base and carrying a vertically movable pump plunger, atoy tower above the pump body, a mounting plate secured to the base toone side of the tower, a relatively low tower carried by the mountingplate, a solenoid coil carried by the mounting plate and having avertically movable armature, a rocker arm carried by the low tower andconnected at one end to the pump plunger and toward the other end to thearmature, the weight of the armature acting to lift the pump plunger, acircuit closer having a fixed contact connected to the armature and athermally operated movable contact having a heater coil in series, andan insulating support for the circuit closer carried by the mountingplate.

2. An operating unit for a toy oil derrick, comprising a sheet metalplate carrying at one end a rocker arm supporting tower and at the otherend an electrically heated, warp element and circuit closer controlledby the warp element, and intermediate the ends a vertical solenoid coilabove the plate and connected to the circuit closer, a rocker armpivoted on the tower and having one end extending over the top of thesolenoid, a plunger type armature in the solenoid and a link connectingthe bottom of the armature and the rocker arm to lower the said end ofthe rocker arm by gravity and lift it when the solenoid coil isenergized.

3. In a toy oil derrick, in combination, a base including a fiatplatform and depending elements elevating the base above a table orother fiat support, a toy oil pump simulating device carried by thebase, and a toy pumper including a metal plate mounted on top of theplatform, a plate carried rocker arm supporting tower, a rocker armpivoted on the tower, a solenoid carrying a plunger type armatureprotruding through the plate and through an aperture in the platform, alink connecting the bottom of the armature and the rocker arm, aninsulating plate carried by the metal plate above an aperture therein,said plate aperture being above an aperture in the platform, a warpelement carried by the insulating plate above the same and carrying aheater coil in series with the warp element, an adjustable fixed contactagainst which the warp element normally bears and projecting downthrough both apertures to be accessible for adjustment under the base,and a wire connecting the fixed contact with the solenoid coil.

References Cited in the file of this patent UNITED STATES PATENTS880,943 Weisenbach Mar. 3, 1908 2,068,531 Blume Jan. 19, 1937 2,382,782Eichelberger Aug. 14, 1945 2,453,177 Abramson Nov. 9, 1948 2,496,135Sedwitz Jan. 31, 1950

